From: Weijie Yang <weijie.yang@samsung.com>
Date: Tue, 12 Nov 2013 23:07:52 +0000 (-0800)
Subject: mm/zswap: avoid unnecessary page scanning
X-Git-Tag: v3.13-rc1~106^2~208
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b349acc76b7f65400b85abd09a5379ddd6fa5a97;p=pandora-kernel.git

mm/zswap: avoid unnecessary page scanning

Add SetPageReclaim() before __swap_writepage() so that page can be moved
to the tail of the inactive list, which can avoid unnecessary page
scanning as this page was reclaimed by swap subsystem before.

Signed-off-by: Weijie Yang <weijie.yang@samsung.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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